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https://issues.apache.org/jira/browse/MYNEWT-336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15434029#comment-15434029
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Sterling Hughes commented on MYNEWT-336:
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Where are we on this bug? Shall we punt to 1.1 or is it already fixed?
> Allow smaller mbufs for data frames
> -----------------------------------
>
> Key: MYNEWT-336
> URL: https://issues.apache.org/jira/browse/MYNEWT-336
> Project: Mynewt
> Issue Type: Improvement
> Components: Nimble
> Reporter: Christopher Collins
> Assignee: William San Filippo
>
> When the host sends a data packet, it fills an mbuf with the payload and
> passes it to the controller.
> The controller expects the mbuf to consist of a single contiguous buffer. To
> support this requirement, a nimble application needs to allocate large mbufs
> (>= 260 bytes) to permit large data packets to be sent. This is wasteful
> because many data frames are likely quite a bit smaller than this.
> Reliability would improve if an application could allocate more, smaller,
> mbufs.
> The fix is for the controller to accept mbufs that consist of several chained
> buffers.
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